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### Study of QCD Thermodynamics at Finite Density by Taylor Expansion / Shinji Ejiri, Frithjof Karsch, Edwin Laermann, Olaf Kaczmarek, Christian Schmidt, Simon J. Hands, Chris Allton

Progress of Theoretical Physics Supplement, Volume: 153, Pages: 118 - 126

Swansea University Author:

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DOI (Published version): 10.1143/PTPS.153.118

Abstract

We discuss the phase structure and the equation of state for QCD at non-zero temperature and density. Derivatives of $\ln Z$ with respect to quark chemical potential $\mu_q$ up to fourth order are calculated for 2-flavor QCD, enabling estimates of the pressure, quark number density and associated su...

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Published in: Progress of Theoretical Physics Supplement 0375-9687 2004 https://cronfa.swan.ac.uk/Record/cronfa28434 No Tags, Be the first to tag this record!
Abstract: We discuss the phase structure and the equation of state for QCD at non-zero temperature and density. Derivatives of $\ln Z$ with respect to quark chemical potential $\mu_q$ up to fourth order are calculated for 2-flavor QCD, enabling estimates of the pressure, quark number density and associated susceptibilities as functions of $\mu_q$ via a Taylor series expansion. Also, the phase transition line for 2 and 3-flavor QCD and the critical endpoint in the $(T, \mu_q)$ plane are investigated in the low density regime. College of Science 118 126